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Support Center | AppLovin

Banner & MREC Ads

このコンテンツはまだ日本語訳がありません。

The following sections show you how to load and then show and hide a banner or MREC ad.

Loading a Banner or MREC

The following code shows you how to load a banner or MREC by using your Ad Unit ID, desired position, and (for banners) desired background color. MAX will size the ad for you automatically:

final String _banner_ad_unit_ID = Platform.isAndroid ? "«Android-banner-ad-unit-ID»" : "«iOS-banner-ad-unit-ID»";


function initializeBannerAds()
{
  // MAX automatically sizes banners to 320×50 on phones and 728×90 on tablets
  AppLovinMAX.createBanner(_banner_ad_unit_ID, AdViewPosition.bottomCenter);
}

Displaying a Banner

To show a banner, call showBanner():

AppLovinMAX.showBanner(_banner_ad_unit_ID);

To hide a banner, call hideBanner():

AppLovinMAX.hideBanner(_banner_ad_unit_ID);

Widget Method

You can also render a banner or MREC directly in your widget tree:

final String _ad_unit_ID = Platform.isAndroid ? "«Android-ad-unit-ID»" : "«iOS-ad-unit-ID»";
MaxAdView(
  adUnitId: _ad_unit_ID,
  adFormat: AdFormat.banner,
  listener: AdViewAdListener(onAdLoadedCallback: (ad) {
    ⋮
  }, onAdLoadFailedCallback: (adUnitId, error) {
    ⋮
  }, onAdClickedCallback: (ad) {
    ⋮
  }, onAdExpandedCallback: (ad) {
    ⋮
  }, onAdCollapsedCallback: (ad) {
    ⋮
  })
)

Ad Preloading

As of Flutter plugin version 3.11.1, you can preload ads for platform widgets before you mount MaxAdView. When you mount MaxAdView with the Ad Unit ID you preloaded, MaxAdView is constructed with a preloaded platform widget. This allows the ads to display quickly.

Flutter plugin version 4.1.0 updates this preloading feature to support multiple MaxAdView instances. The preloadWidgetAdView() method returns an AdViewId, which you can use to specify the preloaded ad when you mount a MaxAdView.

AppLovinMAX.preloadWidgetAdView(«ad-unit-ID», AdFormat.banner)
  .then((adViewId) {
    print('Started preloading a banner ad $(adViewId) for ${«ad-unit-ID»}');
  });

You can specify the AdViewId when you mount a MaxAdView:

MaxAdView(
  adUnitId: «ad-unit-ID»,
  adFormat: AdFormat.banner,
  adViewId: «ad-view-ID»,
  listener: AdViewAdListener(onAdLoadedCallback: (ad) {
    print('Banner widget ad (${ad.adViewId}) loaded from ${ad.networkName}');
  }))

When you unmount the MaxAdView, the preloaded platform widget is not destroyed. Instead, it is cached and reused for the next mount. To release its resources, you must manually destroy it when you no longer need it:

AppLovinMAX.destroyWidgetAdView(«ad-view-ID»)
  .then((_) {
    print('Destroyed the preloaded banner ad');
  });

If you omit an AdViewId when you mount a MaxAdView, the component dynamically loads an ad. In such a case, when you unmount the MaxAdView, it is automatically destroyed and cannot be reused.

See the example app at the AppLovin-MAX-Flutter GitHub project for a complete working example.

Adaptive Banners

Stopping and Starting Auto-Refresh

You may want to stop auto-refresh for an ad. This may be the case when you hide an ad or when you want to manually refresh. Stop auto-refresh with the following code:

AppLovinMAX.showBanner(«ad-unit-ID»);
AppLovinMAX.stopBannerAutoRefresh(«ad-unit-ID»);

Start auto-refresh for an ad with the following code:

AppLovinMAX.startBannerAutoRefresh(«ad-unit-ID»);
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